When Worlds Collide: What Happens When Former Co-Stars Reunite On New Shows?

Roseanne on The Big Bang Theory

[Photo Credit: CBS]

Dawson's Creek on Don't Trust The B--- In Apt 23

[Photo Credit: ABC]

Blossom and 'Til Death

[Photo Credit: Fox]

Seinfeld on Curb Your Enthusiasm

[Photo Credit: HBO]

Arrested Development on Archer

[Photo Credit: Fox/Netflix/FX]

The Fresh Prince of Bel-Air

[Photo Credit: Getty Images]

Friends on Cougar Town

[Photo Credit: ABC]

The Simpsons and Fraiser

[Photo Credit: Fox/Getty Images]

Battlestar Galactica on Portlandia

[Photo Credit: IFC]

Dharma And Greg on Two And A Half Men

[Photo Credit: CBS]

With this year's tranche of Super Bowl ads about to hit us Sunday, a sneak peek of one commercial has especially warmed our hearts. Yeah, it may have started off as just another Oikos yogurt ad, but it ended with John Stamos, Dave Coulier and Bob Saget in their post-Full House glory. If these three can get back together just for a TV spot, imagine if they staged a full-scale reunion!

They wouldn't be the first bunch of former co-stars who've shown up together when we least expected it. Who else has surprised their fans by rekindling their old chemistry?

We're not just talking about your garden-variety spinoffs — we mean those impromptu appearances that make you realize your favorite stars appreciate their cultural relevance as much as you do!

Check out our list of co-stars who've taken their past popularity and put a new spin on their places in TV nostalgia.

[Photo Credit: ABC]